SB's X-Ram actually make a difference?

Deciding between the X-Fi XtremeGamer and the X-Fi XtremeGamer Fatal1ty Pro and the only difference I can really tell is the 64MB of X-Ram on the Fatal1ty. Has anyone tested the difference? or seen/heard a difference in gaming? Thanks in advance!

XRam is only used for games specifically coded for it, so in real use it makes no difference